[Bridge] [PATCH net] net: bridge: fix a null pointer dereference in br_afspec

David Miller davem at davemloft.net
Tue Jun 6 20:06:01 UTC 2017

From: Nikolay Aleksandrov <nikolay at cumulusnetworks.com>
Date: Tue,  6 Jun 2017 01:26:24 +0300

> We might call br_afspec() with p == NULL which is a valid use case if
> the action is on the bridge device itself, but the bridge tunnel code
> dereferences the p pointer without checking, so check if p is null
> first.
> Reported-by: Gustavo A. R. Silva <garsilva at embeddedor.com>
> Fixes: efa5356b0d97 ("bridge: per vlan dst_metadata netlink support")
> Signed-off-by: Nikolay Aleksandrov <nikolay at cumulusnetworks.com>

Applied and queued up for -stable, thanks Nikolay.

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